Improvement in churn-dasher crank-fixtures



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C. BLUST, 0F LUCAS, OHIO, AAND MATTHAU HARBSTER, READING, PENN-SYLVANIA, ASSIGNORS TO C. BLUST.

Lette/rs Patent No. 100,969, dated M'arch 22, 1870.

MPRO'V'EMENT IN CHURN-DASHER CRANE-FIXTURES.

The Schedule. referred to in these Letters Patent and making part of thesame.

To all whom it may concern:

Be it known that we, C. BLUsT, of Lucas, in the county of Richland andState of Ohio, and MATTHAU HARB- sTER, of Reading, in the county ofBerks and State of Pennsylvania, have invented anew and usefulImprovement in Uhuru-Dash Crank-Fixtures; and we do hereby declare thatthe following is a full, clear, and exact description thereof, whichwill enable others skilled in the art to make and use the saure,reference being had to the accompanying drawings forming part of thisspecification.v

Figure l is a detail sectional View of my improved fixtures.

Figure 2 is a detail sectional view of the same, taken through the linex x, fig. l.

Figures 3, 4, and 5 are detail views of various parts of the fixtures.

Similar letters of reference. indicate corresponding parts.

Our invention has for its object to improve the construction of thecrank and other fixtures by means of which ahorizontal ehnrn-dasher isoperated, so as to simplify' their construction and at the same timeenable the dasher to be easily operated and convenient-ly removed fromthe churn-body when required; and

It consists in the construction and combination of the various fixturesas hereinafter morefullj1 described.

A is the bracket, by means Iof which the crank Bis connected with thechurn-body, and which is made with three radial arms, al having holesthrough their ends to receive the screws to secure it to the chumbody.

a? are three arms projecting from the arms al, and at the outer end ofwhich is formed -the outer bearing a?, for-the crank-shaft b'.

l The inner bearing a* for said shaft-s is formed in the middle of thebase-plate of. the bracket Ai The inner hearing or socket a* projectsbeyond the base ofthe bracket A far enough to pass through the side ofthe churn, and is made slightly tapering, so that it may be drivenfirmly into the hole formed in the side ofthe churn-body to receive it.

B is the crank, the shaft b' of which passes through and works in thebearings a a* ofthe brackets Al" Through the middle part of the shaft bare formed two holes to receive the wedge keys O Gwhich rest against thebea-rings a.3 at, and preventall longitudinal movement of saidcrank-shaft while being used.

Upon the inner end ot' the shaft b' is formed a square tapering teuon,which enters a square socket in the plate I), attached to the end of thedasher.

In the outer end of the hearing a* is formed a stufting-box or recess,in which is placed a leather, gumelastic, or other suitable packing, E,to prevent the contents of the churn from leaking out around theshaft'b.

The packing E may be kept in place by the key c, or by an iron washer,F, interposed between the said packing and key, as shown in figs 1 and2.

G is a plate, having apivot projecting from its middle part and castsolid with it.

H is a plate which is designed tothe let into a hole bored in the innersurface ofthe churn-body, and which is cast with a socket formed in itto receive the pivot of the plate G. By this construction, by removingthe outer key c', the crank B may bedrawn outward until the inner end ofits shaft b' is flush with the inner surface of the churn-body, allowingthe churn-dash to be conveniently removed. v

Having thus described our invention,

What we claim as new, and desire to secure by Letters Patent, is

l. A removable crank-shaft, b', perforated at two points, and providedwith wedges Cv C to hohl it in positionfand to admit of its entire orpartial removal,

